package backend.Java_Demo.reflection;

public class Test02 {
    public static void main(String[] args) throws ClassNotFoundException {
        Person person = new Student();
        System.out.println("这个人是"+person.name);

        //方式一：  通过对象获得
        Class c1 = person.getClass();
        System.out.println(c1.hashCode());

        //方式二：  forName获得
        Class c2 = Class.forName("backend.Java_Demo.reflection.Student");
        System.out.println(c2.hashCode());

        //方式三：  通过类名.class获得
        Class c3 = Student.class;
        System.out.println(c3.hashCode());

        //方式四：  基本内置类型的包装类都有一个Type属性
        Class c4 = Integer.TYPE;
        System.out.println(c4);

        //获得父类类型
        Class c5 = c1.getSuperclass();
        System.out.println(c5);


    }
}

class Person{
    public String name;

    public Person() {
    }

    public Person(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "Person{"+"name="+name+'\''+'}';
    }
}

class Student extends Person{
    public Student(){
        this.name = "学生";
    }
}

class Teacher extends Person{
    public Teacher(){
        this.name = "老师";
    }
}